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प्रश्न
What do you mean by the term coelomate animals? Give two examples.
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उत्तर
Coelomate animals refer to those animals that possess a true body cavity or coelom. The coelom originates from mesoderm and is lined by epithelial cells of mesodermal origin.
Examples: Animals of phylum Annelida, such as earthworm and leech
Animals of phylum Mollusca, such as octopus and pearl oyster
APPEARS IN
संबंधित प्रश्न
Match the following:
| Column I | Column II | ||
| (a) | Operculum | (i) | Ctenophora |
| (b) | Parapodia | (ii) | Mollusca |
| (c) | Scales | (iii) | Porifera |
| (d) | Comb plates | (iv) | Reptilia |
| (e) | Radula | (v) | Annelida |
| (f) | Hairs | (vi) | Cyclostomata and Chondrichthyes |
| (g) | Choanocytes | (vii) | Mammalia |
| (h) | Gill slits | (viii) | Osteichthyes |
Write one difference between the following pair:
Invertebrates and Vertebrates
Write down four main characters of Platyhelminthes. Give two examples.
Write down four main characters of Annelida.
What do you mean by the term triploblastic animals? Give two example.
Describe some flight adaptations of the birds.
Distinguish between Nonchordata and Chordata.
Name major phyla of Animal kingdom. Write down one character and one example of each of them.
Why are scientific names of living beings considered better than their common names?
Give any one difference between the following :
Insecta and Arachnida
Match the names of animal groups in Column I with the names of animals in column II.
|
Column I (Group) |
Column II (Animals) |
|
Annelida |
Pigeon |
|
Porifera |
Snake |
|
Mollusca |
Earthworm |
|
Reptilia |
Sponge |
|
Amphibia |
Octopus |
|
Pisces |
Trout |
|
Mammal |
Rabbit |
Which names are left out that do not match and why?
Give the name of two animals that belong to phylum echinodermata.
Fill in the blanks:
Nephridia are the excretory organs of ______.
Choose the correct answer: Mosquito is included in insects because
Choose the correct answer: Which of the following is not a helminth parasite?
Choose the correct answer: Protista is the link between
Assertion: Binomial name is the universal name and contains two names.
Reason: It was first introduced by Carolus Linnaeus
Select the INCORRECT statement from the following.
Assertion (A): All vertebrates are chordates but all chordates are not vertebrate.
Reason (R): The members of subphylum vertebrata possess notochord, during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults.
In the light of the above statements, choose the correct answer from the options given below:
Consider the following statements:
- Annelids are true coelomates
- Poriferans are pseudocoelomates
- Aschelminthes are acoelomates
- Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below:
